Extension pistol-barrel.



E. N. MOOR.

EXTENSION PISTOL BARREL.

APPLICATION FILED Nov. 1e, |916.

RENEWED AUG. 3.1918.

Patented Mar. 18, 1919.

:NVE/woe Amm/vir l` uNrrnn sanftes PATENT OFFICE.

EDWARD NORTON lVIOOR7 OF OAKLAND, CALIFORNIA, ASSIGNOR TO COMBINATION POLICE CLUB AND EXTENSION PISTOL BARREL CORPORATION, A CORPORATION or CALIFORNIA.

Specification of Letters Patent.

' EXTENSIONV rrs'roL-BARREL.

Patented Mar. 18, 1919.

Application filed November 16, 1916,`Serrira1 No. 131,783. Renewed August 3, 1918. Serial No. 248,211.

To all whom 15m/ay concern.'

Be it known that I, EDWARD NORTON Moon, citizen of the United Stat-es, residing at Oakland, in the county of Alameda and State of California, have invented certain new and useful Improvements in Extension Pistol-Barrels, of which the following is a specification.

This invention is an improved attachment for re arms.

The object of my invention is to provide simple and efficient means by which a pistol may be converted into a sporting rifle, thereby attaining greater accuracy of aim.

The invention will be hereinafter fully set forth and particularly pointed out in the claims.

In the accompanying drawing Figure 1 shows a side view of a pistol to which the extension barrel is attached. Fig, 2 shows longitudinal sectional view of the extension barrel. Fig. 3 is an end view of the sleeve adjustable for the reception of the revolver barrel. Fig. llc-shows a side view of the same sleeve. Figs. 5 and 6 show end and side views of a metallic sleeve which forms part of the arrangement provided to facilitate the attaching of the extension barrel. Figs. 7 and 8 are end and side views respectively of the front sight.

Referring to the drawing 1 designates a pistol, and 5 is a sleeve, into which the pistol may be inserted by passing the sight 3 through slot 2 and engaging it in recess 4 by a slight turn to the right, a bayonet joint being thusprovided. A collar 6 is attached to sleeve 5, in any desired manner, and provided with two shoulders 7, pressing against a wooden knob 9, to prevent lateral motion. An internally threaded eXtensiOn 8, of collar 6, serves for the reception of screw 10, by which knob 9 is secured to the sleeve. The extension barrel proper consists of a piece 11 of seamless drawn tubing, on the upper end of which is attached a sleeve 12, threaded on the outside to engage complemental threads on sleeve 5. A metal insert 13, shaped to it the muzzle of pistol 1, is set into sleeve 12, butting against barrel 11. A locknut 19 working on sleeve 12, serves to adjust the pressure of insert 13, against the muzzle of pistol l, thus securing a tight fit. A tube 14 is fitted over barrel 11, being provided on the end adjacent pistol l, with a sleeve 15, which carries the rear sight 16, said tube having a threaded engagement with nut 19. Front sight 17 is attached to the free end of tube 14, and held in place by locknut 18.

Having thus explained the nature of the invention, and described an operative manner of constructing and using the same, Valthough without attempting to set forth all of the forms in which it may be made, or all of the forms of its use, the following is claimed 1. An' extension barrel for pistols comprising a sleeve having means for detachably engaging a pistol barrel, an extension barrel, a tube inclosing lsaid barrel and means for adjustably securing said sleeve to said tube.

2. An extension barrel for pistols comprising a sleeve having means for detachably engaging a pistol barrel, an extension barrel. a tube inclosing said barrel and adjustably engaging said sleeve, and a lock nut working on said tubeV and abutting one end of said sleeve.

3. An extension barrel for pistols comprising a sleeve having means for det-achably engaging a pistol barrel, an extension barrel, a tube inclosing said barrel and adjustably engaging said sleeve, a collar attached to said sleeve, and a knob attached to said collar.

4. An extension barrel for pistols comprising a sleeve having` means for detachably engaging a pistol barrel, an extension barrel, a tube inclosing said barrel, said tube and said sleeve having threaded portions in engagement, and a locknut working on the threaded portion of said tube and positioned to abut one end of said sleeve.

5. An extension barrel for pistols comprising a sleeve having means for detachably engaging a pistol barrel, an extension barrel, a tube inclosing said barrel, said tube and said sleeve having threaded portions in engagement, a locknut working on the 'rtlireaded portion of said. tube and postionei a knob to abut 'one/'end -of Vsaid. sleeve, and

attacheditp SayidV sleeve.

5' prsing a ySleeve. havinglmeans Vfor detachably engaging V@pistolbarrel, 'anextension Y i barie1,at1be "n'clcsing fsaid'rbairel e'ridfad? ivecentsA eachrbyladdresgilng the Commissioner of aizents, 

